Issue still persists 2+ months later with latest 7.1.1 code on TZ270s. 3 more sites with similar issues this month alone, again with Bell Hub 2000 router/modems (Canada). Fixing X1 to 1G/FD made no difference, but adding a dumb little gig switch between them seems to help, another spof.
Now I suspect it may be code, either on the SonicWall side or the ISP modem/router side. I now have an NSa2700 which just experienced the same symptom. I put a little 5 port HP Gig switch between the X1 interface and the ISP, the problem goes away.
Answers
Issue still persists 2+ months later with latest 7.1.1 code on TZ270s. 3 more sites with similar issues this month alone, again with Bell Hub 2000 router/modems (Canada). Fixing X1 to 1G/FD made no difference, but adding a dumb little gig switch between them seems to help, another spof.
Freddy...
I'm back!!
Now I suspect it may be code, either on the SonicWall side or the ISP modem/router side. I now have an NSa2700 which just experienced the same symptom. I put a little 5 port HP Gig switch between the X1 interface and the ISP, the problem goes away.